anyway to color 2D triangular plot with "CData"

Hi:

I have a 2D triangulation data including vertices and connectivity, I want to color it with the value at its geometry center. I tried to add a "CData" but it is not recognized by "triplot" function:

Tri=triplot(DT.ConnectivityList,DT.Points(:,1),DT.Points(:,2),'CData',cm);  

where DT is the triangulation objective, and cm is the color at each triangle center.

is there anyway in Matlab can do this?

Thanks!

Yu

Answer 1

[KSSV]

Read about trisurf. Also have a look on patch. You can use any of the two to achieve what you want.

[Yu Li]

Hi:

thanks for your reply.

"patch" seems works but by assigning "FaceVertexCData", but "trisurf" not.

I tried to use command:

Tri=trisurf(DT,DT.Points(:,1),DT.Points(:,2)); 

and below is the error messange:

Error using trisurf (line 65)
The triangulation must reside in 3D space.

do you have any further suggestions?

Thanks!

Yu

[KSSV]

Tri=trisurf(DT.ConnectivityList,DT.Points(:,1),DT.Points(:,2),cm); 

I am assuming that cm is a column array with same number of rows present in Dt.Points.